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TPS54233

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Abwärtswandler, 3,5 bis 28 V Eingangsspannung, 2 A, 300 kHz, mit Eco-Mode

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Datenblatt

TPS54233

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 28 Vin (min) (V) 3.5 Vout (max) (V) 25 Vout (min) (V) 0.8 Features Adjustable soft start, Enable, Light-load efficiency, UVLO adjustable Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000075 Duty cycle (max) (%) 90
Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 28 Vin (min) (V) 3.5 Vout (max) (V) 25 Vout (min) (V) 0.8 Features Adjustable soft start, Enable, Light-load efficiency, UVLO adjustable Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000075 Duty cycle (max) (%) 90
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • 3.5 V to 28 V Input Voltage Range
  • Adjustable Output Voltage Down to 0.8 V
  • Integrated 80 mΩ High Side MOSFET Supports
    up to 2A Continuous Output Current
  • High Efficiency at Light Loads with a Pulse
    Skipping Eco-mode™
  • Fixed 300 kHz Switching Frequency
  • Typical 1 µA Shutdown Quiescent Current
  • Adjustable Slow Start Limits Inrush Currents
  • Programmable UVLO Threshold
  • Overvoltage Transient Protection
  • Cycle by Cycle Current Limit, Frequency Fold
    Back and Thermal Shutdown Protection
  • Available in Easy-to-Use SOIC8 Package
  • Supported by WEBENCH® Software Tool
    (www.TI.com/WEBENCH)
  • APPLICATIONS
    • Consumer Applications such as Set-Top Boxes,
      CPE Equipment, LCD Displays, Peripherals, and
      Battery Chargers
    • Industrial and Car Audio Power Supplies
    • 5V, 12V and 24V Distributed Power Systems

WEBENCH Is a trademark of Texas Instruments
All other trademarks are the property of their respective owners
  • 3.5 V to 28 V Input Voltage Range
  • Adjustable Output Voltage Down to 0.8 V
  • Integrated 80 mΩ High Side MOSFET Supports
    up to 2A Continuous Output Current
  • High Efficiency at Light Loads with a Pulse
    Skipping Eco-mode™
  • Fixed 300 kHz Switching Frequency
  • Typical 1 µA Shutdown Quiescent Current
  • Adjustable Slow Start Limits Inrush Currents
  • Programmable UVLO Threshold
  • Overvoltage Transient Protection
  • Cycle by Cycle Current Limit, Frequency Fold
    Back and Thermal Shutdown Protection
  • Available in Easy-to-Use SOIC8 Package
  • Supported by WEBENCH® Software Tool
    (www.TI.com/WEBENCH)
  • APPLICATIONS
    • Consumer Applications such as Set-Top Boxes,
      CPE Equipment, LCD Displays, Peripherals, and
      Battery Chargers
    • Industrial and Car Audio Power Supplies
    • 5V, 12V and 24V Distributed Power Systems

WEBENCH Is a trademark of Texas Instruments
All other trademarks are the property of their respective owners

The TPS54233 is a 28 V, 2 A non-synchronous buck converter that integrates a low RDS(on) high side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode™ feature is automatically activated. Furthermore, the 1 µA shutdown supply current allows the device to be used in battery powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the Hysteresis of the input under-voltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle by cycle current limit scheme, frequency fold back and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54233 is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance.

The TPS54233 is a 28 V, 2 A non-synchronous buck converter that integrates a low RDS(on) high side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode™ feature is automatically activated. Furthermore, the 1 µA shutdown supply current allows the device to be used in battery powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the Hysteresis of the input under-voltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle by cycle current limit scheme, frequency fold back and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54233 is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance.
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt TPS54233 2A, 28V Input, Step Down DC/DC Converter With Eco-mode™ datasheet (Rev. C) PDF | HTML 30.01.2015
Auswahlhilfe Power Management Guide 2018 (Rev. R) 25.06.2018
Anwendungshinweis Understanding Eco-mode(TM) Operation 05.12.2016
Anwendungshinweis Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) 26.10.2012
Anwendungshinweis Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) 15.09.2010

Design und Entwicklung

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Evaluierungsplatine

TPS54233EVM-373 — Evaluierungsmodul für TPS54233-Abwärtswandler mit Eco-Modus

The TPS54233 dc/dc converter is designed to provide up to a 2 A output from an input voltage source of 3.5 V to 28 V. Rated input voltage and output current range for the evaluation module are given in Table 1 of the User Guide. This evaluation module is designed to demonstrate the small (...)
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Simulationsmodell

TPS54233 Unencrypted PSpice Transient Model Package (Rev. B)

SLUM209B.ZIP (228 KB) - PSpice-Modell
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Berechnungstool

SWIFTINV-CALC — SWIFT™ Converter Inverting Buck/Boost Calculator

The SWIFTINV-CALC Excel sheet is a complementary worksheet to the SLVA317 application note. The worksheet is used to calculate the external components needed to create a negative output voltage from a positive input voltage. The tool features several families of wide input voltage, current-mode (...)

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Berechnungstool

SWIFTPOSNEG-CALC — TPS54160 Pos/Neg Calculation Utility Download

The SWIFTPosNeg-CALC Excel sheet is a complementary worksheet to the SLVA369 application note.

This worksheet is used to calculate the external components needed to create a dual output (i.e. positive and negative) power supply using a step-down switching regulator and catalog off the shelf coupled (...)

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